1.1 Introduction

Objective-C is a C-like object-oriented programming language that is used on Mac OS X to implement the Cocoa API. The LispWorks Objective-C interface is an extension to the interface described in the LispWorks
Foreign Language Interface User Guide and Reference Manual
to support calling Objective-C methods and also to provide defining forms for Objective-C classes and methods implemented in Lisp. This manual assumes that you are familiar with the LispWorks FLI, the Objective-C language and the Cocoa API where appropriate.

Note:
the LispWorks Objective-C interface is only available on the Macintosh.

The remainder of this chapter describes the LispWorks Objective-C interface, which is generally used in conjunction with the Cocoa API (see The Cocoa Interface). Examples in this chapter assume that the current package uses the
objc
package.